Most of the time you won’t get any relevant reply if you just ask for a “user profile.” The request needs to go to the AI in its raw base state.
All models are trained with a specific prompt format that tells the AI what it is and how it should respond, along with what to expect as inputs and what to look for to start a reply. These elements are essential for getting any kind of output. Most if the general chat bots are given a starting instruction that says something like “You are an AI assistant that replies honestly to the user in a safe and helpful way.” The model takes this sentence as a roleplaying context and tries to play the role in an absolute sense. If you ask it about information it does not believe an AI Assistant should know, it does not matter if it knows. The reply will be “in the role of an AI assistant.” You need to jailbreak this roleplaying context. I gave a very basic AI assistant role. If you’re on something like character.ai, this prompt will get you to a place where you can get the character to give you their base context. It takes some creativity to breakout of most base contexts. It usually involves trying to directly address the AI. When you get free of the base context, most (every model I have tested) models will give you a list of traits they have inferred about the user if asked.